#include <stdio.h>
#include<string.h>
char* my_strcat(char *sour, char* dest)
{
	size_t len = strlen(dest);
	char* p = dest;
	int i = 0;
	while (*(sour+i))
	{
		*(p+len  + i) = *(sour+i);
		i++;
	}
	return dest;
}
int main()
{
	char str2[10] = "asdfa";
	char str1[] = "zxcv";
	char* result = my_strcat(str1, str2);
	printf(result);
	return 0;
}